9894881467744 has 384 divisors, whose sum is σ = 25783363694592. Its totient is φ = 3630899036160.

The previous prime is 9894881467711. The next prime is 9894881467759. The reversal of 9894881467744 is 4477641884989.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 458573884 + ... + 458595460.

It is an arithmetic number, because the mean of its divisors is an integer number (67144176288).

Almost surely, 2^{9894881467744} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9894881467744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12891681847296).

9894881467744 is an abundant number, since it is smaller than the sum of its proper divisors (15888482226848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9894881467744 is a wasteful number, since it uses less digits than its factorization.

9894881467744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21838 (or 21830 counting only the distinct ones).

The product of its digits is 3121348608, while the sum is 79.

The spelling of 9894881467744 in words is "nine trillion, eight hundred ninety-four billion, eight hundred eighty-one million, four hundred sixty-seven thousand, seven hundred forty-four".